Waste and overflow connection for bath-tubs.



J. I. EI'CHENLAUB. WASTE AND OVERFLOW CONNECTION FOR BATH TUBS.

APPLICATION TILED JUNE 15, 1908.

Patented Jan. 12, 1909.

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ES PATENT JOHN F. EIGHENLAUB, OF COLUMBUS, OHIO.

Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed. June 15, 1908. Serial No. sea r51.

To all whom it may concern:

tral opening through which passes a vertical Be it Known that I, J onn F. EICHENLAUB, i tubular lifting valve 9, the latter being slida citizen of the United States, residing at C0- lumbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Waste and Overflow Connections for dath-Tuhs, of which the fol lowing is a specification.

My invention relates to the improvement of waste and overflow connections for bath tubs, and the objects of my invention are to provide a construction of this class wherein improved means are provided for preventing overflow from the bath tub; to provide improved means for preventing the freezing of water which may accumulate in the overflow stand pipe and within the trap and to produce other improvements the details of which will be more fully pointed out hereinafter. These objects 1 accomplish in the manner illustrated in the accompanying drawing, in which:

Figure 1 is a central vertical section taken through one end of a bath tub and through my improved waste and overflow connections, Fig. 2 is a transverse section on line :zz-x of Fig. 1, Fig. 8 is a transverse section on line of Fig. 1, and, Fig. 4 is a detail view in elevation of the upper end portion of the overflow stand pipe.

Similar numerals refer to similar parts throughout the several views.

1 represents the end portion of an ordinary bath tub which is provided in its bottom side with a waste outlet 2. From this outlet 2 leads downward and thence horizontally an angular waste pipe 3. This waste pipe is detachably connected with a tubular projection l of a vertically disposed cylindrical body or casing 4.

With the lower end of the casing 4 is connected a second and lower casing section 5 within which is supported a trap 6 which may be of the usual U-form shown. The lower end of the casing 5 has a threaded engagement with the internally threaded opening of a substantially horizontal sewer pipe connection 7 which leads to a sewer. For the reason hereinafter specified, the pipe 7 has formed therewith at one side of said opening a flaring or downwardly projecting lip 7 The up ier end of the casing section 4 has detachabl y connected therewith the lower open end of a longer vertical casing 8 which is of less diameter than the casing 4. The upper end of the casing 8 has formed therein a cenable vertically in the central top opening of the casing 8 and preferably having its upper closed end provided with a suitable handle or finger engaging device such as is shown at 10. The lower end of the tubular lifting valve 9 is enlarged and beveled on its outer face to impart thereto a substantially valveshaped termination 9 which is adapted to bear on a valve seat 11 formed about an opening in the lower sice of an internal extension 4" of the tubular projection 49 of the casing 4. The lower side opening in said extension e is connected with one of the vertical arms of the trap 6 through the medium of a short connecting pipe 12.

Surrounding the tubular valve 9 within the casings 8 and i and at a distance from said valve is an intermediate fixed casing 13, the lower end of which has a threaded engagement with an up or side opening in the extension i As will be observed the intermediate casing 13 has its upper termination slightly below the level of the top of the bath tub 1, its upper end portion being provided with oppositely located recesses or end notches 13 with which are adapted to engage, when the valve termination 9 of the valve body 9 is seated, laterally projecting pins 14 of the valve body 9. In the con struction of my device, it will be understood. that the connections between the various separately formed parts, are made gas and water-tight.

The parts being in the position indicated in Fig. 1 of the drawing, and the level of the water in the bath tub being on the dotted line indicated at r, it is obvious that the same water level will be maintained within the casing 13, inasmuch as the water in the tub will be permitted to pass downward through the outlet 2, through the pipe 3 and easing extension 4* to said casing 13. How ever, should the water he allowed to flow into the bath tub until the level of the water is near the top thereof, it is obvious that any danger of the water overflowing from the tub, will be obviated by the water contained in the casing 13 flowing out through the top of said casing and into the external casing 8 from which it may pass downward into the sewer pipe 7. It being desired to release the water from the tub, the valve body 9 is raised vertically until its valve termination 9 is unseated, thereby opening a waterway tion taken by the heated between the waste pipe and the trap. In order to hold the valve in its open position, it is necessary to impart a slight rotary movement thereto to cause an engagement of the pins 14 with the upper side or end of the casing 13.- 1 V V It is well known that water standing in a trap and in other connections such as those herein described, is liable to freeze when the temperature of the bathroom is suihciently reduced, but by the construction described,

it will be observed that the warm air or gas which is ordinarily contained in a sewer and its connections, will be permitted to rise from the pipe. 7 through the casings 5 and 4 into the casing 8, thereby providing a means for imparting suiiicient Warmth to the pipe 13 and the trap to prevent freezing. In order to better insure the upward passage of the heated air or gas from the sewer pipe, I have provided the flaring lip 7 which will serve to deflect said air or gas into the casing 5. c

For the sake of convenience in illustration, I have indicated the direction taken by the water in full line arrows and the direcgas or air from the sewer in dotted arrows.

What I claim, is:

1. In a Waste and overflow connection for bath tubs, the combination with a bath tub, and a waste pipe leading therefrom, of a casing 4', an extension of said waste pipe projecting within said casing, a casing 13 rising from said waste pipe extension and open at its upper end, a vertical lifting valve in said casing 13 adapted to close an outlet in the lower side of said waste pipe extension, a trap connected with said waste pipe extension outlet, a casing surrounding said casing 13 and communicating with the upper end of the casing 4, a casing section 5 surrounding said'trap and communicating with the lower end of the casing 1, and a sewer pipeconnection for the lower end of said casing 5.

2. Ina waste and overflow connection for bath tubs, the combination with a bath tub having an outlet in its lower portion and a waste pipe leading therefrom, said waste pipe having an extension det'achably' connected therewith said extension having an outlet opening in its lower end, of a casing 13 rising from the upper side of said waste pipe extension and open at its upper end, a vertical lifting valve within the casing 13 and adapted to seat about the opening of the waste pipe extension, a trap and a connection'between said trap and said waste pipe extension opening, a casing which incloses the casing 13, the waste pipe extension and the trap, and a sewer connection with the lower end thereof.

In testimony whereof I affix my signature in presence of two'witnesses. 7 JOHN F. EICIIENLAUB.

Witnesses:

A. L. PI-IELPs, L. CARL STOUGHTON. 

